CVE-2021-27417

low-risk

Published 2022-05-03

eCosCentric eCosPro RTOS Versions 2.0.1 through 4.5.3 are vulnerable to integer wraparound in function calloc (an implementation of malloc). The unverified memory assignment can lead to arbitrary memory allocation, resulting in a heap-based buffer overflow.

Do I need to act?

0.18% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.6/10 Medium

LOCAL / HIGH complexity

Affected Products (1)

Ecospro

Affected Vendors

Ecoscentric

References (4)

Permissions Required https://bugzilla.ecoscentric.com/show_bug.cgi?id=1002437

Third Party Advisory https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

Permissions Required https://bugzilla.ecoscentric.com/show_bug.cgi?id=1002437

Third Party Advisory https://www.cisa.gov/uscert/ics/advisories/icsa-21-119-04

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low-risk

Severity 12/34 · Low

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal